BGT singers Richard and Adam Johnson are more experienced than they led us to believe (Picture: ITV)

BGT’s talented sandwich makers Richard and Adam Johnson are actually semi-pro singers, it has been revealed.

The brothers won over the nation with their performance of The Impossible Dream on Saturday night’s episode of Britain’s Got Talent but it’s now emerged the humble singers have been perfecting their act on cruise ships since last August.

The duo – who were joined on stage by their nan at one point – have even released their own self-made album after being spotted by Charlotte Church’s former record-producing mentor Gordon Lorenz.

Defending their prior experience, their mum Mrs Johnson, 49, said: ‘Sandwiches are not their passion. They just want to sing and that’s what they’ve been concentrating on more and more.

‘But they’re not yet able to earn enough money from singing to quit the day job so they’re still involved [in the family business] … just. They last worked here two or three weeks ago for a couple of days,’ she told the Daily Mail.

Tenor Richard, 22, and his 19-year-old baritone brother Adam, who work at their parents’ Subway franchise, have also performed with Ken Dodd on three occasions and were paid ‘a couple of hundred pounds per performance,’ a source added to the newspaper.

A Britain’s Got Talent spokesman said: ‘Richard and Adam both work in the family’s sandwich shops in Wales. Over the past few months they’ve worked part time as they have been pursuing their dream of making a living from singing with occasional work on cruise ships and other small gigs.’